Andrews Air Force Base

⚠ Superfund · Cleanup underway

The U.S. Air Force (USAF) has conducted environmental investigations at the site since 1985, under its Environmental Restoration Program. EPA and the USAF identified 16 different areas that require remedial investigations. Long-term remedies have been selected for some site areas; investigations are still underway for many other site areas.

Location

CityAndrews Air Force Base
CountyPrince George S County
StateMaryland
Coordinates38.79167, -76.87500

Contaminants of concern

Contaminated media

Cleanup timeline

  1. Initial Assessment Completed — 08/30/1985
  2. Proposed to the National Priorities List — 07/28/1998
  3. Finalized on the National Priorities List — 05/10/1999
  4. Remedial Investigation Started — 09/04/2001
  5. Remedy Selected — 09/28/2005
  6. Final Remedy Selected — Estimated Sep - Nov 2028
  7. Remedial Action Started — 09/15/2005
  8. Construction Completed — Not Yet Achieved
  9. Deleted from National Priorities List — Not Yet Achieved
  10. Most Recent Five-Year Review — 06/05/2021

EPA references

Other Superfund sites in Prince George S County

EPA-regulated facilities nearby

Understanding this Superfund site

Andrews Air Force Base is a federal Superfund site in Maryland. The Superfund program, created by Congress in 1980, addresses sites where hazardous substances have been released or threaten release into the environment. EPA scores potential sites using the Hazard Ranking System; those that score high enough are placed on the National Priorities List.

Current status: Cleanup underway. Active cleanup is underway, meaning EPA has approved a remediation plan and work is in progress. Cleanup timelines vary widely — some sites take decades depending on contamination depth, groundwater involvement, and funding availability.

EPA has identified 10 contaminants of concern at this site, including 1,2,4-trimethylbenzene, 1,2-dibromoethane, 1,3,5-trimethylbenzene. Contamination has been detected in soil, groundwater, sediment.

If you live near this site and have health concerns, your state health department can provide site-specific guidance. EPA maintains a community involvement program for most NPL sites, and site documents — including the Record of Decision, five-year reviews, and public health assessments — are typically available through EPA's Superfund site profile.